No office rate
22612 reports posterior or posterolateral lumbar fusion work. Code 22830 reports assessment of an existing fusion, not creation of a new fusion.
On this page
CMS RVU26D · Effective 2026-10-01
22830 in Modesto
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$776.25
Base rate per service
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
Spine surgery
About 22830: Exploration of prior spinal fusion
An operative inspection of a previously fused spinal segment, reported when the surgeon assesses whether the fusion is solid or has failed.
A spine surgeon—typically an orthopedic surgeon or neurosurgeon—operatively exposes and assesses a prior fusion to determine whether the bone has united or whether a nonunion or other failure is present. This is an intraoperative assessment, often encountered during surgery planned for persistent symptoms or revision of a prior spinal procedure; it is not an imaging study or a routine office examination. The operative report should identify the fusion site explored and describe the findings that support the assessment.
Report 22830 for the exploration itself, distinguishing it in the record from any revision fusion, fixation-device work, or other procedure performed during the same operation. It has a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and others at 50%. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation, and team surgery is not permitted. Modifier 50 is inappropriate for this code.
CMS billing rules for 22830
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU10.94 · 46%
- Practice expense (office) RVU9.42 · 40%
- Malpractice RVU3.34 · 14%
8.6K
Medicare services in 2024 · #1557 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
22830 compared with similar codes
Office rates for Modesto, from the same CMS release.
No office rate
22852 describes removal of segmental spinal instrumentation. Use 22830 for exploration of the fusion itself, not simply for taking out hardware.
No office rate
22849 describes reinsertion of a spinal fixation device. It concerns fixation hardware, whereas 22830 concerns assessment of the prior bone fusion.
The same code, a different location
How does Modesto compare?
22830 across payment areas
Same release and payment basis · bars start at $0
Modesto · This locality
Unavailable
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
No comparable rate is available in this setting.
Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.
The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.
Compare all 108 other payment areas
Madera
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Merced
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Napa
California · 22830
Office
Unavailable
Facility
$859.79
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 22830
Office
Unavailable
Facility
$817.04
No comparable office rate is available.
Redding
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Rest Of California
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 22830
Office
Unavailable
Facility
$811.98
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 22830
Office
Unavailable
Facility
$804.28
No comparable office rate is available.
Salinas
California · 22830
Office
Unavailable
Facility
$801.19
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 22830
Office
Unavailable
Facility
$813.14
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 22830
Office
Unavailable
Facility
$894.96
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 22830
Office
Unavailable
Facility
$891.17
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 22830
Office
Unavailable
Facility
$919.10
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 22830
Office
Unavailable
Facility
$903.60
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 22830
Office
Unavailable
Facility
$789.78
No comparable office rate is available.
Santa Cruz-Watsonville
California · 22830
Office
Unavailable
Facility
$815.16
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 22830
Office
Unavailable
Facility
$802.30
No comparable office rate is available.
Santa Rosa-Petaluma
California · 22830
Office
Unavailable
Facility
$822.54
No comparable office rate is available.
Stockton
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Vallejo
California · 22830
Office
Unavailable
Facility
$854.32
No comparable office rate is available.
Visalia
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Yuba City
California · 22830
Office
Unavailable
Facility
$776.25
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 22830
Office
Unavailable
Facility
$879.94
No comparable office rate is available.
Miami
Florida · 22830
Office
Unavailable
Facility
$975.08
No comparable office rate is available.
Chicago
Illinois · 22830
Office
Unavailable
Facility
$940.20
No comparable office rate is available.
Manhattan
New York · 22830
Office
Unavailable
Facility
$931.33
No comparable office rate is available.
Alaska*
Alaska · 22830
Office
Unavailable
Facility
$944.67
No comparable office rate is available.
Alabama
Alabama · 22830
Office
Unavailable
Facility
$703.86
No comparable office rate is available.
Arkansas
Arkansas · 22830
Office
Unavailable
Facility
$693.13
No comparable office rate is available.
Arizona
Arizona · 22830
Office
Unavailable
Facility
$765.78
No comparable office rate is available.
Colorado
Colorado · 22830
Office
Unavailable
Facility
$791.69
No comparable office rate is available.
Connecticut
Connecticut · 22830
Office
Unavailable
Facility
$846.56
No comparable office rate is available.
Delaware
Delaware · 22830
Office
Unavailable
Facility
$778.39
No comparable office rate is available.
Fort Lauderdale
Florida · 22830
Office
Unavailable
Facility
$885.83
No comparable office rate is available.
Rest Of Florida
Florida · 22830
Office
Unavailable
Facility
$833.87
No comparable office rate is available.
Atlanta
Georgia · 22830
Office
Unavailable
Facility
$820.16
No comparable office rate is available.
Rest Of Georgia
Georgia · 22830
Office
Unavailable
Facility
$779.04
No comparable office rate is available.
Hawaii, Guam
Hawaii · 22830
Office
Unavailable
Facility
$787.74
No comparable office rate is available.
Iowa
Iowa · 22830
Office
Unavailable
Facility
$697.59
No comparable office rate is available.
Idaho
Idaho · 22830
Office
Unavailable
Facility
$707.64
No comparable office rate is available.
East St. Louis
Illinois · 22830
Office
Unavailable
Facility
$879.55
No comparable office rate is available.
Rest Of Illinois
Illinois · 22830
Office
Unavailable
Facility
$827.04
No comparable office rate is available.
Suburban Chicago
Illinois · 22830
Office
Unavailable
Facility
$888.78
No comparable office rate is available.
Indiana
Indiana · 22830
Office
Unavailable
Facility
$711.29
No comparable office rate is available.
Kansas
Kansas · 22830
Office
Unavailable
Facility
$706.06
No comparable office rate is available.
Kentucky
Kentucky · 22830
Office
Unavailable
Facility
$747.19
No comparable office rate is available.
New Orleans
Louisiana · 22830
Office
Unavailable
Facility
$788.21
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 22830
Office
Unavailable
Facility
$750.73
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 22830
Office
Unavailable
Facility
$855.35
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 22830
Office
Unavailable
Facility
$791.48
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 22830
Office
Unavailable
Facility
$846.86
No comparable office rate is available.
Rest Of Maryland
Maryland · 22830
Office
Unavailable
Facility
$789.88
No comparable office rate is available.
Rest Of Maine
Maine · 22830
Office
Unavailable
Facility
$724.26
No comparable office rate is available.
Southern Maine
Maine · 22830
Office
Unavailable
Facility
$747.60
No comparable office rate is available.
Detroit
Michigan · 22830
Office
Unavailable
Facility
$857.12
No comparable office rate is available.
Rest Of Michigan
Michigan · 22830
Office
Unavailable
Facility
$778.62
No comparable office rate is available.
Minnesota
Minnesota · 22830
Office
Unavailable
Facility
$722.19
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 22830
Office
Unavailable
Facility
$769.84
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 22830
Office
Unavailable
Facility
$776.72
No comparable office rate is available.
Rest Of Missouri
Missouri · 22830
Office
Unavailable
Facility
$745.28
No comparable office rate is available.
Mississippi
Mississippi · 22830
Office
Unavailable
Facility
$718.75
No comparable office rate is available.
Montana**
Montana · 22830
Office
Unavailable
Facility
$791.38
No comparable office rate is available.
North Carolina
North Carolina · 22830
Office
Unavailable
Facility
$730.25
No comparable office rate is available.
North Dakota**
North Dakota · 22830
Office
Unavailable
Facility
$725.34
No comparable office rate is available.
Nebraska
Nebraska · 22830
Office
Unavailable
Facility
$697.98
No comparable office rate is available.
New Hampshire
New Hampshire · 22830
Office
Unavailable
Facility
$790.56
No comparable office rate is available.
Northern Nj
New Jersey · 22830
Office
Unavailable
Facility
$872.55
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 22830
Office
Unavailable
Facility
$845.99
No comparable office rate is available.
New Mexico
New Mexico · 22830
Office
Unavailable
Facility
$787.91
No comparable office rate is available.
Nevada**
Nevada · 22830
Office
Unavailable
Facility
$773.29
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 22830
Office
Unavailable
Facility
$970.06
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 22830
Office
Unavailable
Facility
$861.36
No comparable office rate is available.
Queens
New York · 22830
Office
Unavailable
Facility
$921.56
No comparable office rate is available.
Rest Of New York
New York · 22830
Office
Unavailable
Facility
$742.74
No comparable office rate is available.
Ohio
Ohio · 22830
Office
Unavailable
Facility
$765.12
No comparable office rate is available.
Oklahoma
Oklahoma · 22830
Office
Unavailable
Facility
$733.06
No comparable office rate is available.
Portland
Oregon · 22830
Office
Unavailable
Facility
$803.81
No comparable office rate is available.
Rest Of Oregon
Oregon · 22830
Office
Unavailable
Facility
$757.21
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 22830
Office
Unavailable
Facility
$832.61
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 22830
Office
Unavailable
Facility
$759.67
No comparable office rate is available.
Puerto Rico
Puerto Rico · 22830
Office
Unavailable
Facility
$793.39
No comparable office rate is available.
Rhode Island
Rhode Island · 22830
Office
Unavailable
Facility
$796.88
No comparable office rate is available.
South Carolina
South Carolina · 22830
Office
Unavailable
Facility
$750.96
No comparable office rate is available.
South Dakota**
South Dakota · 22830
Office
Unavailable
Facility
$717.53
No comparable office rate is available.
Tennessee
Tennessee · 22830
Office
Unavailable
Facility
$711.32
No comparable office rate is available.
Austin
Texas · 22830
Office
Unavailable
Facility
$797.86
No comparable office rate is available.
Beaumont
Texas · 22830
Office
Unavailable
Facility
$755.36
No comparable office rate is available.
Brazoria
Texas · 22830
Office
Unavailable
Facility
$767.15
No comparable office rate is available.
Dallas
Texas · 22830
Office
Unavailable
Facility
$777.79
No comparable office rate is available.
Fort Worth
Texas · 22830
Office
Unavailable
Facility
$776.09
No comparable office rate is available.
Galveston
Texas · 22830
Office
Unavailable
Facility
$773.13
No comparable office rate is available.
Houston
Texas · 22830
Office
Unavailable
Facility
$834.27
No comparable office rate is available.
Rest Of Texas
Texas · 22830
Office
Unavailable
Facility
$764.73
No comparable office rate is available.
Utah
Utah · 22830
Office
Unavailable
Facility
$761.34
No comparable office rate is available.
Virginia
Virginia · 22830
Office
Unavailable
Facility
$753.45
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 22830
Office
Unavailable
Facility
$793.39
No comparable office rate is available.
Vermont
Vermont · 22830
Office
Unavailable
Facility
$733.34
No comparable office rate is available.
Rest Of Washington
Washington · 22830
Office
Unavailable
Facility
$786.36
No comparable office rate is available.
Seattle (King Cnty)
Washington · 22830
Office
Unavailable
Facility
$860.88
No comparable office rate is available.
Wisconsin
Wisconsin · 22830
Office
Unavailable
Facility
$701.19
No comparable office rate is available.
West Virginia
West Virginia · 22830
Office
Unavailable
Facility
$798.47
No comparable office rate is available.
Wyoming**
Wyoming · 22830
Office
Unavailable
Facility
$762.60
No comparable office rate is available.
See how rates vary across the country
22830 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
View all state and territory rates as a table
| State / territory | Rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
Where does this rate apply?
Modesto is a Medicare payment area. Our Census mapping connects it to 33 cities and communities in California, including the examples shown here.
Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 22830 in Modesto. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$853.88
$776.25 × 110% = $853.88
A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.
Working with a whole code list?
Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.
How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 22830 in Modesto.
PPRRVU2026_Oct_nonQPP.csv
2,108
- Code
- 22830
- Physician work
- 10.94
- Practice expense
- 9.42
- Malpractice
- 3.34
GPCI2026.csv
16
- Locality
- Modesto
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 10.94 | × 1.017 | 11.1260 |
| Practice expense | 9.42 | × 1.096 | 10.3243 |
| Malpractice | 3.34 | × 0.536 | 1.7902 |
| Total RVUs | 23.2405 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Modesto$776.25
Open 22830 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 10.94 | 1.017 |
| Practice expense | 9.42 | 1.096 |
| Malpractice | 3.34 | 0.536 |
(10.94 × 1.017 + 9.42 × 1.096 + 3.34 × 0.536) × $33.4009 = $776.25
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
How this rate has changed
22830 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
Explore release dates and calculate this code in an earlier period →
Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.
Inspect every release and its CMS source
| Effective from | Office / nonfacility | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $776.25 | RVU26D |
| 2026-07-01 | Not available in this setting | $776.25 | RVU26C |
| 2026-04-01 | Not available in this setting | $776.25 | RVU26B |
| 2026-01-01 | Not available in this setting | $776.25 | RVU26A |
| 2025-10-01 | Not available in this setting | $804.87 | RVU25D |
| 2025-07-01 | Not available in this setting | $804.87 | RVU25C |
| 2025-04-01 | Not available in this setting | $804.87 | RVU25B |
| 2025-01-01 | Not available in this setting | $804.87 | RVU25A |
22830 billing questions
How is exploration different from revision fusion?
Exploration assesses whether the prior fusion has united; revision fusion treats or extends the fusion. The operative note should distinguish the assessment from any repair performed.
Does 22830 include removal of spinal hardware?
No. Exploration concerns the prior fusion, while hardware removal is a separate service, such as removal of segmental instrumentation reported with 22852. Document each service performed and follow applicable coding edits.
Can 22830 be reported with a fusion procedure?
It may occur during an operation that also revises or extends a fusion. Documentation should show the distinct exploration and its findings; whether both services are separately reportable depends on applicable coding edits.
Should modifier 50 be used when the surgeon explores both sides?
No. CMS identifies bilateral adjustment as inappropriate for 22830; modifier 50 should not be used for this code.
What documentation supports 22830?
Record the previously fused site that was explored and the surgeon's intraoperative findings about fusion integrity, including evidence supporting a solid union or suspected failure.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
2,10522812,,Arthrd ant dfrm 8+ vrt sgm,A,,33.39,18.50,NA,18.50,,7.12,59.01,59.01,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,10622818,,Kyphectomy 1-2 segments,A,,33.47,16.63,NA,16.63,,7.14,57.24,57.24,0,090,0.11,0.76,0.13,2,0,2,2,2,9,,33.4009,09,0,99,0.00,0.00,0.00
2,10722819,,Kyphectomy 3 or more,A,,38.40,19.34,NA,19.34,,8.18,65.92,65.92,0,090,0.11,0.76,0.13,2,0,2,2,2,9,,33.4009,09,0,99,0.00,0.00,0.00
2,10822830,,Exploration of spinal fusion,A,,10.94,9.42,NA,9.42,,3.34,23.70,23.70,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,10922836,,Ant thrc vrt body tethrg <7,A,,31.20,16.33,NA,16.33,,6.64,54.17,54.17,0,090,0.10,0.69,0.21,2,0,0,2,1,9,,33.4009,09,0,99,0.00,0.00,0.00
2,11022837,,Ant thrc vrt body tethrg 8+,A,,34.61,11.46,NA,11.46,,3.69,49.76,49.76,0,090,0.10,0.69,0.21,2,0,0,2,1,9,,33.4009,09,0,99,0.00,0.00,0.00
2,11122838,,Rev rplc/rmv thrc vrt tethrg,A,,35.10,11.57,NA,11.57,,3.75,50.42,50.42,0,090,0.10,0.69,0.21,2,0,0,2,1,9,,33.4009,09,0,99,0.00,0.00,0.00
1301182,CA,18,LOS ANGELES-LONG BEACH-ANAHEIM (LOS ANGELES/ORANGE CNTY),1.041,1.183,0.664
1401112,CA,58,MADERA,1.017,1.096,0.536
1501112,CA,59,MERCED,1.017,1.096,0.536
1601112,CA,60,MODESTO,1.017,1.096,0.536
1701112,CA,51,NAPA,1.063,1.318,0.508
1801182,CA,17,OXNARD-THOUSAND OAKS-VENTURA,1.028,1.182,0.623
1901112,CA,61,REDDING,1.017,1.096,0.536